Hey guy just want to know what should i do or check at this milage. I think all the parts like fuel filter,radiator fluid and i think intercooler fluids are original. The truck is rarely run hard but im new to this lightning thing and the owner i believed only WOT like 10 times EVER!!!! THANKS ALL

 

Fuel filter for sure..
Change that about every 3 oil changes.

 

You hit the nail on the head. But it depends on how **** you are. In theory it should all be fine until upwards of 50,xxx miles (except for the fuel filter). I'm in the same boat as you and will be changing all those fluids as well as the brake fluid.